S/2003 J 2
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S/2003 J 2 is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard, et al. in 2003. As of 2005, it is Jupiter's outermost known moon.
S/2003 J 2 is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 30,291 Mm in 1077.018 days, at an inclination of 154° to the ecliptic (152° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.188.
It seems to belong to a group all of its own, with semi-major axis ~30 Gm and inclination ~150°.
The limits of Jupiter's gravitational influence are defined by its Hill sphere, whose radius is 52 gigametres. S/2003 J 2 reaches only 36 Gm from Jupiter during its orbit, thus it is possible that more distant moons of Jupiter may be discovered.
| edit Jupiter (satellites) |
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| Inner satellites | Galilean moons | Themisto | Himalia group | Carpo |
| S/2003 J 12 | Ananke group | Carme group | Pasiphaë group | S/2003 J 2 |
| See also: Pronunciation key | Rings of Jupiter |
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